For the purpose of developing Korean Herbalogy with the plants of Scrophulariaceae which grow wild and is planted in Korea, the these and writings on herbalogy, from literature of successive generations, have been thoroughly investigative and the results obtained were as follows : 1. There were totaled to 24 genera and 85 species in Korea and among them medicinal plants are 17 genera, 45 species, some 53% in total but, the number of species may be added because of the similiar plants. 2. According to the oriental names which can be used for medical purpose, the medicinal plants belonging to the Scophulariaceae family were classified as Herba 19, Radix 4, Foilum 3, Flos, Rhizoma, Fructus 2 each. Thus it was noticed that Herba was the main kind. 3. According to sum of 85 species in Scrophulariaceae family, they were classified into Veronica genera 22, Pedicularis genera 14, Melampyrum genera 7, Euphrasia genera 6, Scrophularia genera 5, Limnophila genera, Lindernia genera, Mazus genera, Veronicastrum genera 3 each. Thus it was noticed that Veronica genera was the main kind, some 25% in total. 4. According to the number of species of the origin plants about each chinese materia medicals, they were classified into RADIX SCROPHULARIAE 5, HERBA VERONICAE, HERBA PEDICULARIS 4 each. Ths the origin plants was not complexed reletively. 5. According to nature and flavour of medicinal plants, they were classified into warmth, heat ; 10 each, cold,cold ; 13 each, balance 2. Ths it was noticed that cold and cool is the main in nature and flavour of medicinal plans. 6. According to the Properties and Principal curtive action, they were classified into Drugs for removing toxic heat with febrifugal and detoxicant diaphoretics 7, to remove evil heat and resolve dampness 6, tonify the blood 3, to promote or activate blood circulation by removing blood stasis, to dispel pathogenic heat from blood with drugs cold in property, to stop bleeding drugs 2 each. Thus it was noticed that Febrifugal and detoxicant drugs was the main kind. 7. Comparing to whole medicinal plants 45 kinds, toxic drug was 1 kind, 2% of the whole. Thus toxic drugs were rare. From this result, it was revealed that the plants for medical purpose in Scrophulariaceae was 53% of the whole, in which Herba was mostly abundunt and toxic plants was so rare that it will be used for clinical treatments more easily. It is considered that many experiements and clinical approaches must be continued to use Scrophulariaceae plants widely.